Symptoms - Transfer Case

Symptoms - Transfer Case

Important: These steps must be completed before using the symptom tables.

1. Perform the Diagnostic System Check - Vehicle, before using the Symptom Tables in order to verify that all of these are true:
^ There are no diagnostic trouble codes (DTCs) set.
^ The control module or modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions.


Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the automatic transfer case system.
^ Inspect the easily accessible, or the visible system components for obvious damage or conditions which could cause the symptom.
^ Inspect the automatic transfer case for the proper fluid level.


Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.


Symptom List
Refer to a symptom diagnostic procedure from this list in order to diagnose the symptom:
^ Transfer Case Shift Control Switch Indicator Always On - Two or More Transfer Case Shift Control Switch Indicator Always On - Two or More
^ Transfer Case Shift Control Switch Indicator Inoperative - One or More Transfer Case Shift Control Switch Indicator Inoperative - One or More
^ Transfer Case Popping Noise Transfer Case Popping Noise
^ Transfer Case Whine or Rumble Noise Transfer Case Whine or Rumble Noise
^ Transfer Case Growl or Grinding Noise Transfer Case Growl or Grinding Noise
^ Transfer Case Clunk in 2HI Only Transfer Case Clunk In 2HI Only
^ Transfer Case Clunk in 4HI Transfer Case Clunk In 4HI Only
^ Transfer Case Clunk in 4LO Transfer Case Clunk In 4LO Only
^ Transfer Case Shudder or Binding Transfer Case Shudder or Binding
^ Transfer Case Will Not Shift Transfer Case Will Not Shift
^ Transfer Case Jumps Out of Gear Transfer Case Jumps Out of Gear
^ Transfer Case Leak Diagnosis Transfer Case Leak Diagnosis